Valve-bag.



N. M. FEGELY.

VALVE BAG.

APPLICATION FILED Nov.2\.191s.

1 ,287,935 Patented Dec. 17, 1918.

W my fla A TTORNE VS.

NATHAN M. FEGELY, OF IOLA, KANSAS.

VALVE-BAG.

Specification of Letters Patent.

Patented Dec. 11 1918.

Application filed November 21, 1916. Serial No. 132,516.

To all whom it may concern:

Be it known that I, NATHAN M. FnoELY, citizen of the United States of America, and a resident of Iola, in the county of Allen and State of Kansas, have invented new and useful Improvements in Valve-Bags, of which the following is a specification.

This invention relates more particularly to bags which are used for shipping cement, and known in the trade as cement bags, although it is to be understood that the invention may be applied to other packaging bags if found desirable, and I do not wish to be understood as restricting myself specifically to cement bags by referring to the same in the following description.

The objects of the invention are to provide an improved valve bag which will not spill the contents; to provide a valve which will close naturally and automatically; to avoid changing the capacitv of the bag in forming the valve therein; to retain the full strength of the bag; to support the bag by its gathered or tied end upon the filling spout while being filled; to secure simplicity of construction and operation, and to obtain other advantages and results as may be brought out in the following description.

Referring to the accompanying drawing, in which like numerals of reference indicate the same parts throughout the several views,

Figure 1 is a side, elevation of a cement bag having its mouth tied closed, and shown in position for filling upon a filling spout;

Fig. 2 is a side view of the same with the mouth open and showing the valve opening distended for greater clearness;

Fig. 3 is a perspective view of a portion of the inside of the bag showing the valve opening distended;

Fig. 4. is a transverse sectional view through one of the rivets at the end of the valve opening, and

Fig. 5 is a transverse cross-sectional view transverseh through the distended valve opening.

In the specific embodiment of the invention illustrated in said drawings, the reference numeral 1 indicates a bag having as usual a mouth 2 and preferably made from fabric. such as coarse or heavy. cloth. As is usual in the construction of such bags, the cloth or material of which the bag is made, is sewed together, as at 3, forming a seam 4- down one side of the bag and across the bottom. It is to be understood that the marginal portions of the cloth are brought flatwise together, in making this seam, and the stitching runs along said margins at a distance from the edges thereof holding the two portions of the material together. This leaves marginal portions or flanges 5, 5 of the material between the free edges thereof and the stitching, said flanges, in use, being upon the inside of the bag.

Near the mouth of the bag, said flanges are, for a certain length, left unstitched, forming thereby a valve opening or slot 6 through the seam of the bag, by means of which the bag may be filled after the mouth of the bag is tied up. As shown, a suitable wire or other tie 7 is provided adapted to pass around the neck of the bag or that portion thereof adjacent the mouth and close the mouth. It will be obvious that tying the mouth in this manner gathers or puckers the material together, causing portions of the material to overlap other portions. I take advantage of this natural puckering of the neck and overlapping of the material to close the valve opening 6 by positioning said valve opening in the neck of the bag rather than elsewhere. Closure of this opening is furthermore secured by the natural tendency of the flanges to lie flatwise together across the same, since they are positively held flatwise together by the stitching 3 at either end of the opening, and although I have shown the valve opening or slot drawn apart or distended in the several views for greater clearness, it is to be understood that the slot is normally closed. As the bag is filled, it is found that the flanges are both turned to one side and held against the wall of the bag by the pressure of the contents, and this tendency to lie against the wall of the bag obviously will lap one of the flanges over the valve opening, effectually sealing the opening against the escape of the cement or other contents of the bag.

Furthermore, the puckering of the neck of the bag as above described relieves the portion of the bag around the valve from any additional strain due to the opening or incontinuity, and lifting or handling the bag tends neither to tear or strain the bag as a result of the opening nor to cause the opening to gap and spill the contents, acting rather to close the slot. Further advantages of my improved valve bag are that it does Cir not change the shape or appearance of the bag and does not change the capacity of the bag at all nor does it require any additional material in manufacture.

To insure against ripping the seam open, as while the bag is being filled, the stitching at each end of the opening is reinforced in any suitable manner, and in the drawing 1 have shown a r *et 8 at each end of the opening in .the line of stitching. Q'hese rivets extend through and securely clamp the flanges together and take substantially the entire strain from the seam when. the valve is opened, as when the filling nozzle is inserted. However, I deem it within the scope of the invention to employ other means than these rivets if so desired for accomplishing the same purpose.

In use, it is to be understood that the bag, being empty, is first tied with the tie '4'. completely closing the mouth of the bag. Preferably in tying the bag the tie is placed as close to the valve opening (3 as practicable without interfering with the proper use. thereof So as to take full advantage of the puckering caused by said tie. The nozzle 9 of the filling machine is inserted in this valve opening and the bag hangs thereon while being filled. As shown, the nozzle eX- tends well across the bag, supporting the same at the middle and top of the bag, taking advantage of the tied neck which is the most natural and strongest part by which to hang the bag. When the bag is filled it is removed from the nozzle permitting the valve opening to close. To remove or use the contents from the bag, the tie 7 is undone and the mouth of the bag opened giving free access to the interior of the bag.

Although I have shown a valve formed by an opening in a seam, between the inwardly projecting flanges thereof, it is to be understood that any common and well-known valve adapted to the purpose may be employed, and l have used the term valve' herein as including everything of that sort. Other modifications and changes may be made in manufacturing my improved valve bag without departing from the spirit and scope of the invention, and I do not wish to be understood as restricting myself except Gopies 01" this patent may be obtained memes as required by the following claims when construed in the light of the prior art.

Having thus described the invention, what I claim is.

1. A packaging bag having a discharge end adapted to be closed by tying, and a filling valv which closes against discharge through itself located in that portion of the bag which is gathered or puckered by such tying and through which valve the bag may be filled after it is tied.

2. A packaging bag having a discharge end adapted to be closed by tying, and a filling valve which closes against discharge through itself longitudinally located in that portion of the bag which is gathered or puckered by such tying and through which valve the bag may be filled after it is tied.

3. A packaging bag having a discharge end adapted to be closed by tying and a longitudinal side seam, and a filling valve which closes against discharge through itself in said side seam adjacent said discharge end of the bag, whereby in tying said end the gathering or puckering aids in closing the valve.

i. A packaging bag having a discharge end open and'unobstructed for substantially the maximum cross-sectional size of the ba said end adapted to be closed by tying, and a filling valve which closes against discharge through itself located in that portion of the bag which is gathered or puckered by such tying and through which valve the bag may be filled after it is tied.

A packaging bag having a longitudinal side seam and having a discharge end open and unobstructed for substantially the maximum cross-sectional size of the bag, said end adapted to be closed by tying, and a filling valve which closes against discharge through itself in said side seam adjacent said end whereby in tying said end the gathering or puekering aids in closing the valve.

in testimony whereof I have signed this specification in the presence of two subscribing witnesses.

NATHAN M. FEGELY.

vl itnesses:

Jonn BROWN, Gnrss n P ILLIPS.

for five cents each, by addressing the tiemrnissioner of. ?atents,

Washington, 3. e. 

